FR2556423A1 - FIXING ATTACHMENT FOR THE APPLICATION OF ANY ARTICLE, FOR EXAMPLE CHUTE OR CONDUIT, TO ANY SUPPORT, FOR EXAMPLE PERFORATED PLATE, FRAME OR CHASSIS DOOR, IN PARTICULAR FOR ELECTRICAL EQUIPMENT - Google Patents

Abstract

A fastening device for attaching an object to a support comprises two separate parts, consisting of a base member which incorporates means for fastening it to the support and a head member which incorporates means for fastening it to the object. The base member and the head member conjointly comprise complementary snap fastener means adapted to fasten them to one another. The device is particularly suited to attaching a wiring channel or conduit to a perforated plate, a chassis upright or an electrical equipment cabinet door.

Description

The present invention relates generally to subjection

  from any article to any medium. It is more particularly the case where the article to be fixed is a chute of the type commonly used for guiding electrical conductors in the

  electrical cabinets, that is to say in the cabinets or cof-

  freight for the accommodation of any electrical equipment

  cudgels. As is known, such a chute, which is for example made of synthetic material, has a generally U-shaped cross section, with, in the axis of its bottom, from place to place, at a regular step defined by the standards in this respect, openings suitable for

  passage of the fasteners necessary for its subjection

to any support.

  Most often, these openings are lengthened

  the axis of the bottom, in particular to allow, but to a limited extent, the adjustment in position of the

  chute with respect to the support on which it is to be

scope.

  For the most part, electrical equipment with

  vir are housed in the actual body of the cabinet concerned, and,

  to do this, it is previously implemented, in this

  here, an appropriate specific support.

  It may be, for example, a perforated plate, it is

  that is to say of a plate, generally metallic, presenting a

  bucket of recesses, of contour in rectangular practice, separated

  two to two by cross members, in one direction, and by bars in a second direction, orthogonal to the previous one.

  Securing a chute to such a plate

  drilled is, most often, to date, either with the help of

screws, or using rivets.

  Such organs should commonly be drawn from a

  in bulk, which may lead to

  gods, and, by clumsiness, losses.

  When it comes to screws, whether metal screws or screws made of synthetic material, such screws,

2S56423

  after crossing the bottom of the chute and the perforated plate

  should, moreover, cooperate with a nut, on the other hand

side of said perforated plate.

  Their installation therefore requires intervention behind the perforated plate, and is therefore an operation in practice.

  that inconvenient to drive and relatively long to run.

  Of course, it is planned to report them in advance

  on the perforated plate, using specific staples.

  However, the adjustment in position of the chute being

  However, costly trial and error are still inevitable.

  It is the same with rivets, the implementation of which

  In addition, it also requires an unusual tooling

  link. Finally, when they are metallic, such organs,

  whether they are screws or rivets, are normally

  to the usual safety requirements, since they lead in a way to the establishment of a metal bridge between the electrical conductors contained in the trunking and the underlying perforated plate, to the detriment of the continuity

  insulation normally ensured by the bottom of such a government.

  burbot when made of synthetic material.

  Certainly it is proposed in the French patent filed January 31, 1978 under the N 78 02643 and published under the N

  2,416,577, a fastening device which makes it possible to

  jettir a chute to a perforated plate, avoid in a

  to some extent the disadvantages mentioned above.

  But this fixing device forming a kind of stirrup whose branches must enclose the wings of the trunking to secure, snapping into them in favor of the slots they usually have for crossing the electrical conductor or drivers concerned, it is only suitable for specific chutes, its dimensions

  to be adapted to those of these.

  It is therefore only a device for attaching

very limited practical use.

  Otherwise. concurrently with electrical cabinets

  Equipped with a nerve plate, there are electric cupboards

  which, for the support of the electrical equipment they must contain, are equipped with a frame formed by two lateral uprights to which are attached,

  transversely, in height, profiles, generally metal-

  suitable for such support.

  These are, in practice, profiles presenting

  a U-shaped cross-section, with wings fitted with

  angle returns for the snap-in of electrical equipment

  concerned, whether they are wings of equal heights

  to each other, their returns at right angles being then usual-

  outwardly, or that they are wings of unequal heights relative to each other, their returns

  at right angles then being usually directed inwards.

  If such profiles are well suited to the fixation of

  electrical braces, this is not the case for trunking intended for housing electrical conductors

  necessary to serve them.

  In addition to the necessity of such profiles for the support

  chutes, it is therefore necessary to report on them

  adapters, to be able to secure the chutes

to fix.

  But, this subjection being done as before using screws or rivets, and in practice, most often

  using screws, it leads to the same disadvantages, and,

  the inconvenience of hesitation, clumsiness, and

  groping, as those mentioned above.

  Moreover, irrespective of the electrical equipment

  housed in the body of the electrical cabinets concerned, the door itself is usually equipped

  electrical components such as indicator lights, push buttons

  evenings, joysticks, or other visualization devices

  and / or order, properly served by

  electrical conductors which are to be tracked

along such a door.

  If some of these drivers, suitably stranded

  with others and properly linked to them by col-

  clamps, form sets rigid enough to keep themselves a stable configuration in contact with the door, without risk of too chaotic

  or random in relation to it, it is not necessary

  likewise for all, and for their protection, as well

S56423

  that to avoid that more or less intervene on the access to the interior volume of the cabinet when opening its door, they are not inadvertently the object of a pull likely to lead to their tearing, it is most often necessary to fix them to it. But for reasons of safety and watertightness,

  It is appropriate to preserve the integrity of this

  te, which proscribes the execution of any drilling in it for the desired fixing, only being admitted the holes necessary for the establishment on such a door of the electrical organs, or other equipment, that

she must wear.

  Most often, to this day, the attachment to this door of the electrical conductors serving these organs is done by

  bonding, either by means of suitable adhesive bases

  required for this purpose, whose dress is in practice mediocre, or suitably glued chutes, whose holding is

  satisfactory, but which require for their installation

  relatively complex bonding

  Of course, it is also possible, for the attachment of a chute to a cabinet door, to bring on the latter, along its edges, amounts suitable for fixing a

  section on which can be subject such a chute.

  But, in addition to the need to thus implement amounts and a section, the subjection to the latter of a chute requires as before adaptation organs,

  with the disadvantages specified above.

  Of course, it has also been proposed in the French patent application filed November 18, 1981 under No. 8121729

  published under No. 2.516.713, to benefit from the

  jettling of a chute to an electric cabinet door,

  one of the holes already affecting such a door for the

  planting of electrical organs, or other organs of equi-

she must wear.

  It is implemented, for this purpose, a bracket

  which, on the one hand, presents a passage allowing him to be

  subjectti to the door concerned by simple pinching between the two elements usually constituting an electrical member to report on this door, and which, on the other hand, comprises

  a threaded hole for fixing a chute.

  With such a bracket, setting up a

  chute is therefore made by screwing, with, as mentioned above,

  above, the disadvantages inherent in such a mode of assembly.

  In addition, in such a case, the electrical components to be reported on the door to be equipped must imperatively be implanted at the pitch of the openings present on the bottom of the

  chute to be fixed, which may constitute an inter-

  -timed. Thus, in all cases, whether the attachment of a chute on a perforated plate or whether it is

  its fixing on a section or on an electric cabinet door

  that, and independently of the specific disadvantages inherent to each of these supports, trial and error are to be feared during the installation of a chute, taking into account, on the one hand, that the limited extension of the openings of the bottom of it allows only a reduced position adjustment with respect to such a support, and taking into account, on the other hand, that it is most often necessary to intervene almost

  simultaneously on the chute and on this support.

  Admittedly, this disadvantage is avoided with the attachment base forming the subject of the French patent application filed on December 27, 1982 under No. 82 21807 as well.

  the first certificate of addition N 83 14758 of 16 Sep-

of 1983 attached to it.

  But this mounting base is only suitable for the

  subjugation of a chute to a profile, for which it

has been specifically planned.

  It is not suitable in the case where this subjection must be made to a perforated plate or to a cabinet door

  electric or to a chassis amount.

  The present invention generally relates to a provision which, which can also be implemented

  well in a fastening accessory specific to the subjugation-

  from a chute to a perforated plate than in an access-

  fastening chamber suitable for being secured to a door

  electrical cabinet or to a chassis frame, makes it possible to

  the disadvantages of the usual fastening

  the material, and further leads to other advantages.

  S6423 More specifically, it relates to an accessory

  of fastening suitable for the subjection of any article

  cle, for example chute or conduit, to any support,

  for example perforated plate, frame upright or door

  moire, especially for electrical equipment, characterized in that it consists of two separate parts, namely, on the one hand, a support base, which is provided with means

  to enable it to be subjugated to the

  port concerned, and, secondly, a linkage head, which is

  equipped with fastening means suitable for the purpose of

  the article to be subject to that medium, the said article

  support base and said connecting head being jointly provided with complementary latching means specific to their

subjugation to one another.

  Thus, the support base being fixed to the support

  born, on the one hand, and the connecting head itself being fixed

  the article concerned, on the other hand, irrespective of the

  xation of the support base to the support, it is not neces-

  to intervene simultaneously on the latter and on the

  chute for securing this chute to it.

  It is sufficient to bring the chute, provided with its connecting head, the support base previously reported on the support concerned, until coupling to each other of the connecting head and the support base, and this coupling is done by simple snapping, it is, as a whole, a particularly

easy and quick to drive.

  Preferably, the latching means which is provided with the support base are elongate, so that, while being secured by them to said support base, the connecting head can move freely relative thereto,

  parallel to their sense of elongation.

  This advantageously results in an extended possibility of adjustment in position of the chute with respect to its support, which eliminates any trial and error when setting up.

  of which, in addition, provides a particular solution

  simple problem to the problem of a possible incompatibility between distances to be respected, namely, on the one hand the pitch of the openings that presents the bottom of a chute, and that which can also present the openings or recesses of the

  support to which it must be subject.

  In practice, when the support on which must be reported a chute is a perforated plate, the support base of the attachment according to the invention

  has at least two fastening lugs specific to its

  ratcheting on this perforated plate, at least one of said

  fixing lugs being elastically deformable for this purpose.

  In other words, in such a case, the fastening means

  provided on the support base to enable it to be

  such a perforated plate consist of

  legs, at least one of which is elastically deformable.

  According to a development of the invention, a provision

  of the same type may be adopted for the purpose of

  jettissement such a support base to a frame amount.

  Indeed, such frame amounts usually comprise

  place, at a regular pace, openings or perforations. It is therefore sufficient to provide, in this case, the support base of the fastening accessory according to the invention with two own fixing feet to be engaged in such openings or perforations, such fixing feet thus allowing the subjection of such a support base by simple

  snap on the chassis frame concerned.

  Therefore, when, instead of being equipped with a perforated plate, the electrical cabinet concerned is equipped with a frame, it is advantageously no longer necessary to put

  any profile for fixing a gudgeon

monkfish.

  In fact, it can be directly fixed at

  of such a frame, using two attachments

  according to the invention each respectively implemented

at its ends.

  Finally, when it comes to the subjection of such a chute or any other article, to the door of an electrical cabinet, the support base of the accessory

  according to the invention can very simply present

  Laterally, a fastening sole suitable for

S6423

  thrown at said door by simply pinching between two

  constituent parts of any electrical member or other equipment member to report thereon, as mentioned above. As before, the mobility of the corresponding connection head relative to this support base allows

  advantageously almost complete independence between the implan-

  tation of this electric organ and the pitch of openings

presents the bottom of the chute.

  The features and advantages of the invention

  from the following description,

  for example, with reference to the accompanying schematic drawings in which: Figure 1 is an exploded perspective view of a fixing accessory according to the invention; - Figure 2 is a plan view of the support base that includes this attachment accessory, along the arrow II of Figure 1; - Figure 3 is a cross-sectional view of this support base, along the line III-III of Figure 2; - Figure 4 is an end view, along the arrow IV of Figure 2; - Figure 5 is an elevational view along the arrow V of Figure 2;

  FIG. 6 is a partial cross-sectional view of

  dirty, along the line VI-VI of Figure 4; FIG. 7 is a plan view, along arrow VII of FIG. 1, of the connection head associated with this base.

  of support within the fastening accessory according to the

  vention; - Figure 8 is a larger scale, a sectional view

  cross-section of this connecting head along line VIII-

  VIII of Figure 7; - Figure 9 is a perspective view illustrating the implementation of the attachment accessory according to the invention for securing a chute to a perforated plate;

  FIG. 10 is a partial cross sectional view;

  dirty illustrating this subjugation; - Figure 11 is a view similar to that of Figure 3, for an alternative embodiment of the support base of the attachment accessory according to the invention;

  FIG. 12 is a partial view in cross section;

  dirty of this variant, along line XII-XII of the

  Figure 11; - Figure 13 is a partial plan view along the arrow XIII of Figure 12; FIG. 14 is another partial cross-sectional view along the line XIV-XIV of FIG. 13; - Figure 15 is a different scale, a cross sectional view of the connecting head may be associated with the support base; Figure 16 is a perspective view similar to that of Figure 9, for an alternative embodiment of the attachment accessory according to the invention; FIG. 17 is a perspective view relating to an alternative embodiment of the attachment accessory according to the invention suitable for securing a chute to an electrical cabinet door; - Figure 18 is a cross-sectional view, along the line XVIII-XVIII of Figure 16, the support base that includes in this case the attachment accessory 1 according to the invention; FIG. 19 is a perspective view illustrating a

  another variant embodiment of the fastening accessory

  the invention appropriate to the subjection of one or more

  chutes to a frame amount.

  As mentioned above, these figures illustrate

  generally speaking, the application of the invention to the

  jettissement, at a support specified later, at least one chute 10 clean to channel the routing of cables or other electrical conductors necessary for the service

  any equipment or electrical equipment

  cudgels. Such a chute 10 is well known by itself, and not being the object of the present invention,

  it will not be described in all these details here.

  Suffice it to say that, having a bottom 11 and two wings 12, it has a U-shaped profile transversely, and

  that, in the usual way, its bottom 11 presents longitudinal-

  from place to place, at a regular pitch, along its center line, openings 13 each elongated longitudinally

buttonhole shaped.

  In the embodiment shown, FIGS. 9, 12, 17 and 19, the wings 12 of such a chute 10 are in place in place, themselves affected transversely of indentations 14, for traversing cables or electrical conductors which it must ensure the routing, and for the protection and retention thereof, it is associated with a lid 15

  styling the end of these said wings 12.

  In the application of the invention more particularly illustrated in FIGS. 1 to 12, the support to which such a chute 10 must be subjected is a perforated plate 17, that is to say a plate having a network of recesses 18 two by two, in a first direction, by bars 19, and in a second direction, orthogonal to the previous one, by

sleepers 20.

  In practice, in the embodiment shown, these recesses 18 have a rectangular contour, they are staggered with respect to each other from one row to another, and the bars 19 and cross members 20 which

  separates them have substantially same width or height d.

  The attachment accessory 22 implemented according to the invention

  The invention for securing a chute 10 to such a perforated plate 17 is generally characterized in that it consists of two distinct parts, namely on the one hand, a support base 23, which is equipped with fastening means which are suitable for affixing it to a

  such perforated plate 17, and on the other hand a connecting head 17

  24, which is equipped with fastening means

  put the subjection to chute 10 to subject to

  it, said support base 23 and said linkage head

  its 24 being jointly provided with latching means

  complementary to their subjection to each other.

be.

  The support base 23 is in the general form of

  the of a quadrangular contour plate, with rounded corners.

  It forms, in frontage, a plate 25, of surface sensitive

  flat, for supporting the chute 10, and on the lower surface, parallel to the plate 25, a sole 26,

  for pressing on the perforated plate 17.

  In the embodiment shown, this support base 23 is hollow, the corresponding recess 27

  edge of its sole 26, so that, for the essen-

  tiality, and apart from additional complements specified later-

  this sole 26 is formed by the only edge of the longitudinal longitudinal walls 28A, 28B, and transversely 29, 29 ', on the other hand, laterally bordering the plate 25,

  substantially perpendicular to it.

  In practice, the latching means that is endowed

  this support base 23 so that the connecting head 24 as-

  company may be subject to it are lengthened, longitudinally

  that is, parallel to the long sidewalls

* longitudinal 28A, 28B, along the center line of the

25.

  These are two ratchet teeth 31A, 31B which, al-

  along parallel to a slot 32 provided for this purpose on the plate 25 to give them access, form themselves

the lips of a slit.

  In the embodiment shown, the slot 32 of the plate 25 divides longitudinally in two thereof, and it is prolonged, by indentations 33, 33 ', on a portion

  the height of the transverse side walls 29, 29 'cor-

  respondantes. In addition, the ratchet teeth 31A, 31B, which are in practice set back from the plate 25,

  extend longitudinally substantially over the entire length of

  of the slot 32 thereof, between the side walls

transverse 29, 29 '.

  In the embodiment more particularly

  1a to 10, the ratchet teeth 31A, 31B are identical to each other, and, distinct from the plate 25, they are directed towards it from the volume

  inside the support base 23.

  In practice, they form the ends of plates A, 35B which extend parallel to one another

  transverse walls 29, 29 'to the other, continuously

  from footing 26, and thus by participating,

  to the constitution of this one, figure 3.

  In a symmetrical manner with respect to each other,

  latching teeth 31A, 31B comprise an oblique portion of

  36A, 36B and a retaining catch 37A, 37B intersecting this

engagement section 36A, 36B.

  Given the indentations 33, 33 'of the transverse lateral walls 29, 29', in the outer contour of which in lateral projection, FIG. 4, they are established, they

  both are elastically deformable.

  Preferably, and as shown, the support base 23 has transversely, at the base of at least one of these transverse lateral walls 29, 29 ', and, in practice, at the base of each of these , below the corresponding notch 33, 33 ', and therefore at each end of

  the slot formed by the plate 25 and the snap-in teeth

  ge 31A, 31B, a stiffening bench, respectively

39, 39 '.

  In the embodiments shown in FIGS.

  1 to 12, the stiffening benches 39, 39 'which are

  thus the support base 23 are external to the internal volume thereof, projecting outwardly on its

  transverse side walls 29, 29 'corresponding.

  In practice, such a stiffening bench 39, 39 ', which is hollow, with its recess open towards the sole 26, extends from said sole 26, thus participating,

  by its slice, to the constitution of this one.

  In the embodiments shown, the means

  the support base 23 for its

  jettissement perforated plate 17 are constituted by two fixing lugs 41A, 41B adapted to snap on

such a perforated plate 17.

  In practice, these fastening lugs 41A, 41B extend projecting from the sole 26, to the right of the zone

  median longitudinal side walls 28A, 28B correspond to

ponding.

  At least one of them is elastically deformable.

  In the embodiment more particularly

  presented in Figures 1 to 10, it is so for one

  and the other of the fixing lugs 41A, 41B.

  To do this, each of them is in practice formed by an extension of the longitudinal side wall 28A,

  28B corresponding, taking root in the height of this

  ci, between slots 43 defining it, laterally, on the portion of corresponding height of such a side wall

longitudinal 28A, 28B. Each of them comprises, projecting outwards, a bead of

  retainer 44A, 44B formed by an oblique engagement portion 45A, 45B and a retaining catch 46A, 46B intersecting

this part of engagement 45A, 45B.

  In the embodiment more particularly

  1 to 10, one of the fastening lugs 41A, 41B thus formed, and it is in practice the fixing lug 41A, is extended by a back-shaped stick 48, which develops in direction of the internal volume of

  the support base 23, in line with a recess 49, of

  quadrangular tower, planned, to give him access, in the

  platinum 25 of this support base 23.

  In practice, the support base 23 still includes,

  protruding on its sole 26, and more precisely on the tran-

  with its transverse lateral walls 29, 29 ', at least

a pair of pimples.

  In the embodiment shown, it is thus

  provided, protruding from the edge of each of the side walls

  transverse ribs 29, 29 ', in correspondence of one to the other of these, a pair of pins, respectively 50A,

B, 50'A, 50'B.

  Within the same pair, the pins 50A, 50B and 50'A, 50'B have their oblique slices facing one another, converging towards each other in the direction of

the sole 26.

  Of course, the distance D between the longitudinal side walls 28A, 28B, and therefore between the corresponding fastening tabs 41A, 41B, measured between the external surfaces thereof, is substantially equal to that separating the opposite edges of two recesses 18 adjacent to the plate

  perforated 17 including a cross member 20 thereof.

  Similarly, the distance d between two pins 50A, 50B, 50'A, 'B of the same pair is substantially equal to the width or

  height of the bars 19 and crosspieces 20 of the perforated plate

17.

  Finally, in the more specific embodiment

  shown in FIGS. 1 to 10, the support base

  23 internally, for each of its legs of

  41A, 41B, two stiffening ribs 51A, 51B which frame such a bracket 41A, 41B by connecting in a triangle the plate 25 to the longitudinal side wall 28A,

28B corresponding.

  In the embodiment shown in FIGS. 1 to 12, the connecting head 24 associated with the support base 23 comprises a body 52, which, like the slot 32 of the

  platinum 25 of this support base 23, is also allon-

ge, shaped ruler.

  The snap-fastening means that it includes for cooperating

  with the ratchet teeth 31A, 31B of the support base 23 are constituted by a detent boss 53 which, longitudinally, forms a protruding rib on the

  ruler constituting its body 52, on one of the main faces

  cipales thereof, following the median line of this face, and which, transversely, has a section arrowhead

  adapted to cooperate, with clamping, with said engaging teeth

quetting 31A, 31B.

  This snap-on boss 53 therefore has, transversally,

  beyond a neck 54 of reduced width, which is always higher than

  to that formed at rest by the ratchet teeth 31A, 31B of the support base 23, retaining notches 53A,

  53B each cutting respectively oblique parts of

54A, 54B.

  For securing to the chute 10, the tie head

  its 24 comprises, as fixing means, projecting on the flat surface 52 'which constitutes its body 52, on the other side thereof with respect to its snap-on boss 53, a

  fixing boss 55, which elongated transversely with respect to

  port to said body 52, and therefore with respect to said boss of

  ratchet 53, forming on both sides thereof two arms 56A, 56B, is connected to said flat surface 52 'by a

collar 57.

  In plan, the attachment boss contour 55 is complete

  that of the openings 13 of the chute 10, while being lower than the latter, and it surrounds the contour of the

57 associate collar.

  Thus, the detent boss 55 of the connecting head 24 is clean, first, at the engagement of the connecting head 24 on the chute 10, with the aid of an opening 13 of the bottom 11 thereof. ci, this connecting head 24 being for this purpose presented transversely relative to the bottom 11, on the outer face thereof, and the coming into engagement of this

  connecting head 24 with said chute 10, by simple rotation

  a quarter of a turn relative thereto after such engagement, said connecting head 24 then coming to align, by its body 52, along the center line of the bottom 11 of the chute 10, while the other side of this bottom 11, the arms 56A, 56B of its fixing boss 55 bite on said bottom 11, protruding laterally from the outline of the opening

13 concerned.

  In practice, as illustrated in FIG. 10, and for possible adaptation to differences in bottom thickness 11 for the trough 10, it is provided on the underside

  of these arms 56A, 56B, ribs 57A, 57B, which

  deformable, connect in a triangle these arms 56A, 56B associated with the neck 57, and which are likely to deform during the engagement of the connecting head 24 on the chute 10

  following the process described above.

  As we will have noted, this commitment is made very quickly and very easily, without any trial and error, alone

  being to manipulate the connecting head 24 and the chute 10.

  Likewise, the fixing on the perforated plate 17 of an envelope

  support base 23 is done very quickly and easily, without

no trial and error.

  It is sufficient, for this purpose, to engage, through these legs of

  41A, 41B, this support base 23 on the perforated plate 17, through two recesses 18 adjacent thereof.

  Such commitment is facilitated by the obligatory

  45A, 45B for this purpose, these fixing lugs

  41A, 41B, on the one hand, as well as, on the other hand, by the pins 50A, 50B, 50'A, 50'B which, for their part, cap the crossmember 20 between the recesses 18

  concerned the perforated plate 17.

  It suffices, finally, for the securing of the chute 10 to this perforated plate 17, to subject the support base 23 carried by the perforated plate 17 the connecting head

24 carried by the chute 10.

  Involving only a simple snap, which can easily be driven blind if necessary, this subjugation

  is also done very easily and quickly.

  As will be noted, while subject to the

  23 by its ratchet rib 53, the connecting head 24 can move freely relative thereto,

  parallel to its sense of elongation.

  This results in a great capacity of adjustment in posi-

  possible the chute 10 with respect to the plate

drilled 17.

  This is further increased by the fact that, according to a preferred embodiment, and as shown, the fixing boss 55 that includes the connecting head 24 is shifted longitudinally relative to the central zone of the

  ruler formed by the body 52 thereof, and therefore by

  port to its detent boss 53, which may allow, longitudinally, a possible offset of the connecting head

  24 with respect to the support base 23, on one side of the

  ci, while retaining the fixing boss 55 of this connecting head 24 in the out-turn contour of the plate 25 of

this support base 23.

  Moreover, given this great ability to adjust

  in the position of the chute 10 relative to the perforated plate 17, the implantation on this chute 10 of the support head 24, on the one hand, as well as that of the support base 23 with respect to the plate perforated 17, other

  on the other hand, may in practice be more or less

  tives, which further reduces trial and error during their respective places on the chute 10 and the plate

perforated 17.

  In other words, it is advantageously possible, thanks to the invention, to be satisfied with an approximate and therefore rapid implantation of the support base 23 and / or the head of the

link 24 associated with it.

  In practice, for the subjection of the chute 10

  the perforated plate 17 two or more accessories

  22 according to the invention are implemented, according to the

length of this chute 10.

  After such a securing, the position of the chute relative to the perforated plate 17 is firmly ensured, due, in particular, to the braking action exerted by clamping, by the ratchet teeth 31A, 31B of each

  support base 23 implemented on the longitudinal rib

  quetting 53 corresponding connecting heads 24, such a

  advantageously opposing any longitudinal movement

  inconvenient tudinal too easy said connecting heads 23

  relative to their respective support bases 23.

  lais, if desired, it is always possible to make

  smooth the chute 10 by hand with respect to the perforated plate

  17, so that the connecting heads 24 that it

  door then escaping the support bases 23 corresponding to

  they can be released from this plate

perforated 17.

  Together, each support base 23 can itself be released from the perforated plate 17, using the blade of any tool, a screwdriver for example, by acting for this purpose on the back in the form of a butt 48 associated

  to the fixing lug 41A of such a support base 23.

  According to the variant embodiment shown on the

  FIGS. 11 to 14, only this fixing lug 41A is elastically

  the deformable bracket 41B being

  then massive enough to be relatively rigid,

  a slot being further provided for its rooting in the corresponding transverse side wall 28B, itself

thickened accordingly.

  In practice, the retaining catch 46B that this

  bracket 41B is straight, substantially perpendicular

  nally to said fixing lug 41B, and without oblique panic engagement, the placing on a perforated plate 17

  hooking on it by such a leg of

  41B then pivoting about the corresponding edge of the corresponding recess 18 of said perforated plate 17,

  until latching of the associated bracket 41A.

  In addition, in this variant embodiment, this fixing lug 41A, which is therefore the only elastically deformable one, is formed, not by an extension of the longitudinal lateral wall 28A, but by a retrograde shape that extends locally, at right of the recess 49 of the plate 25, an intermediate wall 28'A, parallel to

  said longitudinal transverse wall 28A.

  It has an oblique engagement portion 45A, and the

  retaining catch 46A which is following it is also very

  obliquely, forming an open dihedron with the

oblique engagement 45A.

  As previously, stiffening ribs 51A,

  51B frame the fastening lugs 41A, 41B thus constituting

  killed; they are in triangle for the fixing lug 41B, as previously, but they are in rectangle for the fixing lug 41A, while connecting to the plate 25 as the lateral transverse wall 28A that the intermediate wall

28'A.

  As before, also, there is provided a stiffening seat 39, 39 'at each end of the slot formed by the plate 25 and the ratchet teeth 31A, 31B; but, in this variant, these stiffening benches 39, 39 'are inside the internal volume of the support base 23 concerned, projecting in the direction of the

  on the inner surface of the trans-

  corresponding versales 29, 29 ', and, in addition, they have only limited extension, affecting only the median portion of said transverse side walls 29, 29', substantially

  to the right of the corresponding pins 50A, 50'A, 50B, 50'B ..

  Moreover, in this variant, it is provided transversally

  in the internal volume of the support base 23

  encircled, substantially parallel to its transverse lateral walls 29, 29 ', a stiffener 58, which connects the wall

  intermediate 28'A to the longitudinal side wall 28B.

  This is in practice a partition which,

  perpendicular to the walls 28'A, 28B which it connects, and

  cine on the inner surface of the plate 25, has, in the right of the ratchet teeth 31A, 31B, in the manner of

  longitudinal side walls 29, 29 ', but with, lateral-

  a greater extent than the latter, an exchange of

crure 59.

  This stiffener has the dual advantage of improving the pull-out resistance of the fastening tab.

  41A that of the bracket 41B, and secondly, of

  force the overall resistance of the support base 23

surrounded.

  Moreover, in the embodiment variant represented

  11 to 14, the ratchet teeth 31A,

  31B are in one piece with the plate 25, forming each

  cune an extension of this plate 25, in the direction of

  internal volume of the support bracket 23.

  But, for the mounting of the stiffener 58, these teeth of

  ratchet 31A, 31B are interrupted locally, in their central zone, at the right thereof, by a transverse groove 63, suitable for the passage of the necessary drawer, when

  of this molding, to the formation of the notch 59 of the said

stripper 58.

  In this variant embodiment, finally the external surface, at least, of the lateral walls 28A, 28B, 29, 29 'is

  slanted, undercut, to facilitate molding.

  FIG. 15 relates, moreover, to a variant of

  realization of the connecting head 24.

  Following this, the body of this connecting head 24

  is reduced to its detent boss 53, which, as previously

  demnent, forms an elongate rib, with, transversely, an arrow-tip section, retaining notches 53A, 53B and oblique engagement faces 54A, 54B, adapted to cooperate, with clamping, with the ratchet teeth 31A, 31B of the base

associated support 23.

  But the tip of the section is largely truncated

by a flat surface.

  In any event, the rib formed by the detent boss has a flat surface 52 'which, in substitution for the preceding body 52, forms a bearing surface

  for the bottom 11 of the trough 10 to be gripped, with, in

  binds on this flat surface 52 ', a fixing boss 55

  analogous to that previously described.

  In the foregoing, it has been assumed that, since the chute must be implanted parallel to the elongation direction of the recesses 18 of the perforated plate 17, the support bases 23 used for this implantation were

  they themselves reported on this perforated plate 17 parallel

this elongation direction.

  But, in a variant, FIG. 16 for an implantation of the trough 10 orthogonal to the previous one, and the dimensions concerned being established accordingly, the support base 23 of each of the fixing accessories 22

  implemented can, on the contrary, be implanted perpendicular

  stretch in the direction of elongation of the recesses 18 of the

  perforated 17, its fixing lugs 41A, 41B then being taken on the opposite edges of the same recess 18 of this perforated plate 17, while its pins 50A, 50B, 'A, 50'B then cap, no plus a cross 20 of this

  perforated plate 17, but each a bar 19 thereof.

  For the rest, the implementation methods are,

  Moreover, identical to those previously described.

  FIGS. 7 and 18 illustrate the application of the invention in the case where the support to which the chute must be subjected

  is formed by the door 60 of the electrical cabinet with

  per, for the purpose of serving any electrical equipment 61, which, consisting of two distinct elements, is

  a head 61A and a body 61B, is adapted to be

  on such a door 60 by simply pinching it, with crossing a passage 62 provided for this purpose in this

door 60.

  It can be a simple light indicator for example.

  In any case, the head 61A is the only one

  visible part of the outside of the electrical cabinet

  born, the body 61B remaining inside thereof, and said head 61A is adapted to engage, for example by screwing,

  on said body 61B, with the passage of the door 60 through the

  wise 62 of it and pinch of this door 60.

  These arrangements are well known per se, and not part of the present invention,

  they will not be described in more detail here.

* S56423

  For fastening to the door 60 of the chute 10, it is implemented, according to the invention, a fixing accessory comprising, on the one hand, a support base 123, described below, and, d ' on the other hand, a connecting head 24 identical to that already described. As the support base 23-.previous, the support base 123 comprises, in front a plate 25, assigned a slot 32 which is laterally extended by notches

  33, 33 'on the transverse lateral walls 29, 29' cor-

respondantes.

  Internally, and also according to the same or more similar to the preceding arrangements, it comprises two latching teeth 31A, 31B, which, in the embodiment shown, are distinct from its plate 25, but which, in variant, could also be

in one piece with this one.

  For its subjection to the cupboard door 60, the

  support base 123 laterally has a base plate

  65 to be subject to that door 60 by simply

  pinching between the two constituent elements 61A, 61B

  of the electrical equipment member 61 concerned, said se-

  65 for this purpose having at least one recess 66 pro-

  pre passage of said equipment member 61, in the manner of the passage 62 of said door 60, or a location specific to 1 '

  implantation of such a recess 66.

  In the embodiment shown, the attachment plate 65, which therefore constitutes the fixing means of the

  support base 23, extends along the only side wall

  longitudinal channel 28A thereof, at the base of this wall

longitudinal side 28A.

  In addition to the latter, it is bordered, on the one hand, by extensions of the transverse lateral walls 29, 29 ', and, on the other hand, at the end of said extensions, by

  a seat 68, which in the embodiment shown

  tee, is hollow, with its recess 67 turned in the same

  meaning that the recess 27 of the support base 123.

  In the embodiment shown, the fixing flange 65 has, in practice, two recesses 66, 66 '

  staggered in height and overlapping each other in eight.

  These recesses 66, 66 ', which are circular in outline, have substantially the same diameter, but one of them, and it is in this case the recess 66', is at least partially surrounded by a zone weakness 69 to enlarge if desired. This is, in practice, a simple bleeding established in

distance from his slice.

  As it is easy to understand, this groove 69 allows detaching by simple depression or cutting, the part of the attachment plate 65 which is between it

  and the contour of the recess 66 'that it surrounds.

  As a variant, it could be substituted for it, as a zone of weakness, a thinner veil, also eliminated.

  nable by simple depression or cutting.

  In addition, on each of the recesses 66, 66 ', opens, transversely, a groove or notch 70, 70', for possible grounding, using a screw provided for this purpose,

  of the electrical equipment member 61 concerned.

  As illustrated, the bench 68 may comprise, in

  at least one hole 72, for reasons that appear = -

hereinafter.

  When fixing the electrical equipment member 61, the attachment plate 65 of the support base 123 is

  pinch, together with the door 60, between the two

  61A, 61B constituting that electrical equipment

61.

  Depending on the location to be respected, the equipping

  electrical equipment 61 passes through one or the other,

  chosen and, if necessary, expanded in the case of

  66 ', of the recesses 66, 66' which is provided for this purpose.

mounting base 65.

  As it is easy to understand, the choice thus made between the recesses 66, 66 'of the fastening sole

  of the support base 123 advantageously allows an im-

  planting the electrical equipment member 61 according to one or the other of two different spacings with respect to this support base 123, and therefore with respect to the chute 10

  subsequently subject to it.

  According to an embodiment variant not shown, the attachment plate 65 does not include any recess 66, 66 'in advance but a simple location specific to the implantation.

  such a recess, to leave the user free to

on this subject.

  In any case, the securing of a chute to the support base 123 thus formed is done following

  modalities of the type of those previously described.

  Furthermore, the drilling 72 that the bench 68 associated with this support base 123 can be used, if desired, for the establishment, by pinching, with a nut, a threaded tie rod which, forming spacer, allows himself the establishment, parallel to the door 60, by pinching

  between two nuts, a protective screen covering the

  seems 123 support bases implemented on this

  door 60 and chutes 10 carried by them (not shown).

sented).

  Moreover, and as schematized in interrelated

  in FIGS. 17 and 18, the support base 123 may extend, on the side of its longitudinal lateral wall 28B, by a cradle 74, the bottom 75 of which is in the plane of its attachment soleplate 65, and whose outlet, frontage, is

  at least partially obscured by an elastically deformed

  Mable 78, said cradle 74 can be used for temporary implantation, before laying the chute 10, cables or electrical conductors specific to the service of 1 '

  electrical equipment member 61.

  Figure 19 illustrates the application of the invention to the

  direct attachment of one or more chutes 10 to a certain

  conque amount of frame 80 presenting, in facade, along

  median line, and following a regular step,

  res 81 which, in the embodiment shown, are

buttonhole lengthened.

  The attachment accessory used for this purpose is

  the invention comprises, on the one hand, a support base 223, described hereinafter, and on the other hand, a connection head

  24 identical to that previously described.

  Essentially, the support base 223 is generally similar to that described with reference to FIGS. 1 to 10, with possible variant following that described with reference

Figures 11 to 14.

  But, instead of having, in the middle zone of its

  longitudinal side walls 28A, 28B, connecting legs

  tion, it includes, in the median zone of its walls,

  transverse panels 29, 29 ', fixing feet 82, 82' adapted to snap onto the frame upright 80, by engagement in two openings 81 separate from the amount of

chassis 80.

  For example, each of these fixing feet 82 may present, transversely, in the direction of one another, a groove 83, 83 ', adapted to come into engagement with the slice

  the corresponding opening 81 of the frame amount 80.

  In addition, in the embodiment shown, the

  support base 223 comprises double, or at least duplicate, latching means for the implantation of a connecting head 24 into any one of at least two zones of

separate location on it.

  In practice, its plate 25 being generally T-shaped, it comprises, as previously, on the one hand, ratchet teeth 31A, 31B elongate in the direction of the center line of the T bar thus formed by this plate

  and, on the other hand, latching teeth 31A, 31B allo-

  in the median direction of the jamb of the said T, and therefore

  following a direction orthogonal to the previous one.

  Thus, as illustrated, it is possible either to implement, as mentioned above, a chute 10 according to one or

  the other of two possible orthogonal directions, one

  to the frame amount 80, the other perpendicular to

  to implement, simultaneously, respectively

  both of these possibilities, two chutes

distinct.

  In any case, and as it is easy to understand

  take, when such a chute 10 is implanted perpendicularly

  the frame amount 80, it can thus extend

  directly from such a chassis amount 80 to the chassis amount 80 associated therewith, without prior establishment,

  of one of these frame amounts 80 to the other, of any

that profiled for its support.

  Of course, the present invention is not limited to the embodiments described and shown, but encompasses any variant of execution and / or combination of

their various elements.

  In addition, and although this is so for the preferred embodiment more specifically described and shown, the connecting head of the attachment accessory

  according to the invention is not necessarily elongated.

  It suffices, for the convenience of position adjustment preferably sought, that the snap means which is provided with the support base of this attachment accessory

be they lying down.

  Finally, the mounting boss that includes such a connecting head is not necessarily offset longitudinally with respect to the median zone of its body.

Claims (25)

  1. Fastening accessory suitable for securing any article, for example trough or duct, to any support, for example perforated plate, frame upright or cabinet door, in particular for electrical equipment, characterized in that it consists of two separate parts, namely, on one hand a support base (23, 123, 223), which is provided with fastening means adapted to allow the subjection to the support concerned, and, d ' on the other hand, a connecting head (24), which is provided with fastening means suitable for permitting its subjection   to the article to be attached to said support, said support base   port (23, 123, 223) and said connecting head (24) being   jointing provided with complementary locking means   subject to their subjection to one another.   2. Fastening accessory according to claim 1, characterized in that the latching means which is provided with the support base (23, 123, 223) are elongated, so that   that, while being subject by them to the said base of   port, said connecting head (24) can move freely   compared to this one, in parallel with their sense of elongation   is lying. Fixing accessory according to Claim 1,   characterized in that the additional latching means   with the support base (23, 123, 223) and the connecting head (24) comprise, for the support base (23, 123, 223), two detent teeth (31A, 31B). , one of which   less is elastically deformable, and for the head of   sound (24), a detent boss (53) adapted to cooperate   with said detent teeth (31A, 31B).   Fastening accessory according to claims 2 and 4   3, taken together, characterized in that, being allo-   the ratchet teeth (31A, 31B) contained in the   support base (23, 123, 223) form the lips of a slot.   Fastening accessory according to Claim 4,   characterized in that at least one of the ends of the   said slot, and preferably to each of these, the base   support (23, 123, 223) transversely stiffening member (39, 39 ').   6. Fixing accessory according to any one of   Claims 1 to 5, characterized in that the support base   port (23, 123, 223) internally comprises a stiffener (58).   7. Fixing accessory according to any one of   Claims 3, -4, characterized in that the support base   port (23, 123, 223) forming a front plate (25), for support of the article to secure the support concerned, the latching teeth (31A, 31B) it comprises are set back by relative to said platen (25).   8. Fixing accessory according to claim 7, characterized in that said detent teeth (31A, 31B) are distinct from said plate (25), being directed towards it from the interior volume of the base plate support (23, 123, 223).   Fastening accessory according to claim 8, characterized in that said detent teeth (31A, 31B) are integral with said plate (25), each forming an extension thereof in the direction of the volume.   inside the support base (23, 123, 223).   Fastening accessory according to claim 6   and 9, taken together, characterized in that the ratchet teeth (31A, 31B) are interrupted locally, in their median zone, by a transverse groove (63) at the right stiffener (58).   11. Fixing accessory according to any one of   Claims 3 to 10, characterized in that the two teeth   latching device (31A, 31B) provided with the support base   (23, 123, 223) are one and the other elastically deformable.   12. Fixing accessory according to any one of   Claims 1 to 11, characterized in that the base plate   port (223) comprises at least double latching means for implantation of a connecting head (24) into any one of at least two distinct location zones on her.   Fastening accessory according to the claims   2 and 12, taken together, characterized in that the latching means which is provided with the support base (223) are elongated in two different directions, and for example in two orthogonal directions relative to one another. to the other.   14. Fixing accessory according to any one of   claims 1 to 13, characterized in that for subjection   perforated plate, the support base (23)   at least two fastening lugs (41A, 41B) adapted to snap onto such a perforated plate, at least one of said tabs (41A, 41B) being elastically deformable for this purpose. Fixing accessory according to Claim 14, characterized in that on its lower surface, the support base (23) has at least one pair of spikes bOA, 50B, 50'A, 50'B), for his commitment to any   crossbar or bar of the perforated plate concerned.   16. Fixing accessory according to any one of   claims 1 to 13, characterized in that for subjection   chassis mount, the support base (223) has at least two mounting feet (82, 82 ') suitable for   its snap on such a chassis amount.   17. Fastening accessory according to any one of   claims 1 to 13, characterized in that for subjection   to an electrical cabinet door, the mounting base   (123) laterally has a fastening plate (65) for   pre to be subject to said door by simply pinching between two constituent elements of any organ of   equipment, indicator light for example, to report on this   ci, said sole (65) presenting for this purpose at least one   recess (66, 66 ') specific to the passage of said team member   location, or a specific location for the implantation of such a recess. Fastening accessory according to Claim 17,   characterized in that said sole (65) has two   dements (66, 66 ') staggered in height.   Fastening accessory according to Claim 18,   characterized in that said recesses (66, 66 ') are pent each other in eight.   20. Fastening accessory according to any one of   claims 18, 19, characterized in that at least one   said recesses (66, 66 ') are at least partially   turned by a zone of weakness (69) to enlarge.   21. Fastening accessory according to claim 4, characterized in that, being also elongated, the detent boss (53) that comprises the connecting head (24) forms a rib.   22. Fastening accessory according to claim 21, characterized in that said rib extends projecting on   a strip forming the body (52) of the connecting head (24).   23. Fastening accessory according to any one of   claims 1 to 20, characterized in that for subjection   to the article to be fastened to the medium concerned, the connecting head (24) has, projecting from a flat surface (52 '), a fixing boss (55) which is connected to said flat surface (52') by a collar (57) that is clean, first   its commitment to the said article in favor of an opening   re (13) provided for this purpose on it, then to its engagement with said article, by simple rotation of a quarter of   return from it after such a commitment.   24. Fastening accessory according to the claims   21 to 23 taken jointly, characterized in that the boss   age of fixation (55) that comprises the connecting head (24) s'   extends transversely with respect to its snap boss   floor (53) 25. Fastening accessory according to any one of   claims 23, 24, characterized in that the boss of   fastening in the connecting head (24) is shifted   gitudinally in relation to the middle zone of his boss latching (53).